I bought several 5-qt jugs M1 AFE 0W20 from Walmart last couple years. I like the 5-qt jug mainly because lower price, about $5/qt compares with $6.xx/qt in quart bottle.
Most auto parts chains have various grades in 5.1-qt jugs, my local O'Reilly has M1 0W20 in 5.1-qt jugs, but their regular price is much higher than WM.
I bought 3-4 M1 0W20 jugs, used 2 and still have empty jugs to transfer used oil to recycle center.
M1 0W20 should be available in Northern states, it is available at all local WM stores(about 5-6) in So Cal that I visited.
I always find the Mobil 1 0w-20 at my local Super Walmart. There are a lot of times where the 5 quart containers are sold out but its replenished pretty often. I use the 5 quart 0w-20 containers for my 2012 CR-V.
I have been looking for Ow20 too. My local walmart carries M1 AFE 0W20 in the 5qt jugs. I talked to the manager and asked for PP 0W20 in the jubs. He's ordered some and is going to start carrying it. My brother lives about 20 miles from me and I hit his walmart last night. They had PP 0W20 and QS UD 0w20 in the 5qt bottles.